App Name: Note Ear Training & Metronome Last Updated: August 21, 2026

I. Product Description "Note Ear Training & Metronome" helps you practice identifying note names, pitch, and intervals. It also includes a tuner and metronome to assist with daily instrument practice, ear training, and keeping time. Some advanced features require a membership subscription.

II. In-App Purchase Prices Weekly Membership (Trial): ¥28/week (includes a 3-day free trial) Weekly Membership (Promo): ¥6 for the first week, then ¥25/week Annual Membership (Promo): ¥128/year (includes a 3-day free trial) Weekly Membership: ¥28/week Monthly Membership: ¥48/month Annual Membership: ¥198/year

III. Membership and Subscription Details

  1. Membership is an auto-renewing subscription; payment is charged via your Apple ID.
  2. You can view, change, or cancel your subscription under "Settings → Apple ID → Subscriptions."
  3. After cancellation, you can usually continue to use the purchased benefits for the remainder of the current billing period.
  4. If you switch devices or reinstall the app, please use the same Apple ID and tap "Restore Membership" within the app.

IV. FAQ

  1. Purchased successfully but don't have membership benefits? First, ensure your internet connection is stable, then tap "Restore Membership." If it still doesn't work, verify that the currently logged-in Apple ID is the same one used for the purchase, and contact us via email.
  2. How do I cancel auto-renewal? Go to iPhone "Settings → Apple ID → Subscriptions," select this app's subscription, and cancel it.
  3. Tuner not working / Pitch not detected? Please enable microphone permissions in your system settings; use the app in a quiet environment; and play clear, steady, sustained single notes close to the microphone.
  4. Ear training progress lost? Progress is saved locally on your device by default. Uninstalling the app, switching devices, or clearing storage may result in the loss of local data. 5. Can't hear the metronome sound? Check your phone's silent switch and system volume, as well as the in-app sound settings and playback status.
  5. What is the difference between free and premium features? Free users can access basic exercises; premium membership is typically required for additional instrument tones, advanced ear training modes, and full access to all difficulty levels and assessments. Please refer to the in-app prompts for specific details.

V. Feedback and Suggestions If you encounter issues or have feature suggestions, please email: [email protected] To help us resolve issues faster, please provide the following information if possible: • Device model and system version • App version • Steps to reproduce the issue • Screenshots or screen recordings (if available)

VI. Service Hours We will reply as soon as possible after receiving your email; requests are generally processed on business days. Thank you for your understanding and support.